Friday, October 22, 2021

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COVID-19: How worried should we be about the AY.4.2 Delta variant?

A descendant of the Delta variant of SARS-CoV-2, which is the virus that causes COVID-19, is spreading rapidly in England. This has led to concerns that the new variant, called AY.4.2, may be partly responsible for the high rate of infections in the ...

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